AB Logix Driver Updates for 1 Scan

[StephenSDH]

There is an issue with the AB Logix driver on the latest version v398.  I can't pin it down, but it has to do with the number of tags or objects on a driver.  Instead of the driver running slow it just updates for the first scan and stops.  I don't get any exceptions.  I can delete 1 object and it will work.  I duplicate a working object with a valid address it breaks.  It does it both with discrete and analog tags.  It does work if I split the tags up on 2 drivers pointing at the same PLC.  I have a test PLC set up if you want to connect in.  I did test on 2 different compactlogix controllers and they both behave the same.

My Project:
https://www.dropbox.com/sh/bvmeu88kdzdr1uf/AACtFl8sCv_fANkYSh-tjl4Ta?dl=0

Steve

[Archie]

Can you send me a RSLogix file with the tags. You can delete all of the logic. I just need the tags that I can load in my test PLC so I can run the app.

[StephenSDH]

I dropped it in the same folder.

https://www.dropbox.com/sh/bvmeu88kdzdr1uf/AACtFl8sCv_fANkYSh-tjl4Ta?dl=0

Thanks, Steve

[Archie]

- Edit EthernetIPforCLXCom.vb
- Go to Line 1096 and change the 6 to a 7

                        (TotalNameLength + (g(i).TagName.Length + 7)) < (m_CIPConnectionSize - 100) AndAlso _


- Go to line 1105 and change that 6 to 7

                        TotalNameLength += (g(i).TagName.Length + 7)

[StephenSDH]

That worked.  Thanks